Gemstone



FIG. 1 is a perspective view of a gemstone in accordance with the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a bottom view of FIG. 1;

FIG. 4 is a side view of FIG. 1, the other side being symmetrical; and,

FIG. 5 is a front view of FIG. 1, the rear view being symmetrical. 

CLAIM The ornamental design for a gemstone, as shown and described. 